Ii always assumed the clamp was a glove, or prosthesis. But yeah, I do hope they don't go with a crazy redesign. The cybermen have always evolved and changed, but the Ice Warriors have pretty much always looked the same.

And you just know they won't be able to resist the urge to show one with its helmet off.

I don't mind that the Silurians' look has changed; I just think their current look is a lot more generic and bland than the DWatS look. Now, they're basically the same as the Jem'Hadar, Tosk, or any other reptilian make-up you can think of.